Combination polygonal wrench with adjustably positioned socket and ratchet wrench



Nov. 29, 1966 R. MANKOVITZ 3,

COMBINATION POLYGONAL WRENCH WITH ADJUSTABLY POSITIONED SOCKET ANDRATCHET WRENCH Filed Nov. 4, 1964 INVENTOR ROBERT MANKOVITZ A ORNEYSUnited States Patent 3,288,002 CGIVIBINATION POLYGONAL WRENCH WITHADIUSTABLY POSITIONED SOCKET AND RATCHET WRENCH Robert Mankovitz,Soderarmsvagen 45, .Iohannesliov, Sweden Filed Nov. 4, 1964, Ser. No.408,849 Claims priority, application Sweden, Nov. 12, 1963, 12,458/63 1Claim. (Cl. 81-71) The present invention relates to an arrangement onpolygonal wrenches with angular or not-round cross section intended, byits end, to be brought into engagement with screw heads or nut membersin order to rotate them.

With modern polygonal wrenches, which essentially take the form of barshaving the usual hexagonal section, it is often impossible whentensioning screws or nuts in positions which are inaccessible, to rotatethe polygonal wrench by its associated shaft, hand grip or the like.

The object of the invention is now to produce a means by which thepolygonal wrench can be caused to rotate by the use of suitablewrenches, e.g. a ratachet wrench, in various displacement positionsalong the polygonal Wrench.

In accordance herewith the invention is characterized essentially inthat a socket, with angular or not-round surface contours, which fits awrench, preferably a ratchet wrench, is displaceably, but not rotatably,mounted on the polygonal wrench.

The invention will be further described below with reference to theattached drawing.

FIGURE 1 shows, in perspective, a polygonal Wrench in combination with asuitable hand grip, a socket mounted on the wrench and a ratchet wrenchengaging the socket.

FIGURE 2 shows, also in perspective, the socket arrangement according tothe invention in a larger scale.

FIGURE 3 is a longitudinal section of FIGURE 2 showing a portion of thesocket in relation to said arrangement.

In the drawing, reference numeral '1 designates a polygonal wrench ofsubstantially known construction having hexagonal section. This tool isintended, in a known manner, to be inserted, and fastened into asuitable hand grip 13, for which fastening a suitable groove 2 isarranged. A socket or the like 3 is positioned along the polygonalWrench, said socket having the form of a hexagonal nut but which mayhave any angular or non-round section either regular or irregular.

This socket 3 is displaceable along the tool 1 and can, in accordancewith the invention, by means of friction, be retained in requiredadjusted positions on the tool but is, on the other hand, not rotatablein relation to the tool 1.

The construction of the socket 3 is best evident from FIGURE 2 where athrough-going hole 4, having hexagonal cross section, fits, with asuitable sliding fit, onto the polygonal wrench 1 so that the socket 3,in accordance with that which is stated above, can be displaced alongthe polygonal wrench 1 but is not rotatable in relation to saidpolygonal wrench. So as to render possible a frictional locking of thesocket in arbitrary positions along the tool 1 a friction ring 5 isattached in one end of said socket 3, which may consist of a flexiblematerial such as rubber, plastic or the like. Said ring may be gluedinto a corresponding recess but, as is best evident from FIGURE 3, thering can be placed in the groove 6 in the one end of the socket andretained in 'ice position by a suitable locking ring 7 or the like. Bysuitably dimensioning the hole 8 it can be arranged so that the socket,by suificiently adapting the friction, is retained in arbitrarydisplacing positions along the polygonal wrench but despite this can bemoved relatively easily along said polygonal wrench 1 on applying alight pressure of the hand. Similar sockets could be produced forvarious dimensions of polygonal wrenches which are indicated by thenumerals 9, 10, 11 in FIGURE 3.

'Thereby it is presumed of course that the hole 4 has correspondinglylarge dimensions and furthermore that the larger the hole of thefriction ring 5 the larger the dimension of the polygonal wrench.

Because, in this Way, an engagement position with a relatively largelever is obtained, which can be displaced along the polygonal wrench, itis easy to rotate the polygonal wrench 1, by means of an adjustablepolygonal wrench, a special wrench or preferably a ratchet wrench 12,i.e. such a wrench that is formed with a ratchet pawl or the like, insuch cases when working with the poly onal Wrench in positions which areinaccessible where it is impossible to serve the said polygonal wrenchwith the ordinary hand grip.

Although the drawing shows hexagonal cross sections for the surfacesection of the socket as well as for the through-going hole theinvention is not restricted hereto but the contours and sections,respectively, of these can be not-round or have any required angularsection regular as well as irregular.

The invention is not limited to the embodiments shown in the figures butcan be modified in any required manner within the scope of the attachedclaim.

What is claimed is:

The combination of a polygonal wrench having a noncircular cross sectionand intended for use in rotating screws, nuts, and the like with asocket member having a hole passing concentrically therethrough alongthe longitudinal axis thereof, the cross section of said holecorresponding substantially with the peripheral contour of saidpolygonal wrench, a recess in one end of said socket adjacent said hole,a friction ring of flexible material secured to said socket Within saidrecess and substantially concentric therewith, said ring having anopening with a diameter less than the largest diameter of the sockethole so the socket is retained in arbitrarily displaced positions alongthe polygonal wrench while remaining relatively longitudinallydisplaceable therealong, said socket having an outer peripheral surfaceof non-circular contour, and a ratchet wrench having an inner peripheralsurface which corresponds to the outer peripheral surface of saidsocket.

References Cited by the Examiner UNITED STATES PATENTS 1,281,438 10/1918Tuttle 81185 X 1,377,758 5/1921 Dobazenecki 8l--185 X 2,457,451 12/ 1948Domack 81-71 X 2,704,681 3/ 1955 Fischer. 2,833,548 5/ 1958 Clark.2,968,980 1/1961 Zierold. 3,027,790 4/ 1962 Wagner.

FOREIGN PATENTS 502,169 5/1954 Canada.

WILLIAM FELDMAN, Primary Examiner.

G. WEIDENFELD, Assistant Examiner.

